Caleb Scharf
Interstellar evolution: Why life could emerge anywhere in the universe
[T]he impetus to go interstellar might have nothing to do with dreams of exploration or empire, but all to do with ...
In the search for aliens, we need ‘a robust definition’ of life
Even though we still struggle with finding a satisfactory definition of life, that doesn’t mean that we can’t think about ways that ...
Viewpoint: What are the odds on the future of humanity?
The more we learn about the history of our own world, and the wider solar system, the more we see ...